Just two days after Microsoft launched Windows 8.1, the software giant has been forced to temporarily pull the RT 8.1 variant from the Windows Store, citing a ‘situation’ that’s affecting some users.

The full official statement is as follows, and it does seem to only apply to Windows RT 8.1 users for now, even though there are reports of issues from those upgrading from Windows 8 too:

Windows RT 8.1. Microsoft is investigating a situation affecting a limited number of users updating their Windows RT devices to Windows RT 8.1. As a result, we have temporarily removed the Windows RT 8.1 update from the Windows Store. We are working to resolve the situation as quickly as possible and apologize for any inconvenience. We will provide updates as they become available.